Paper cutting machine



w. A. DE HART 2,285,911

PAPER` CUTTING MACHINE Filed uarcn s. 1959 15 sheds-sheet 1 June 9,.1942.

w ITN-Ess mi@ June 9, 1942.r w. A. DE HART PAPER CUTTING MACHIN FliledMarch 3, 1939 13 Sheets-Sheet 2` any luLu ATTORNEYS w. A. D'E: HAR-rPAPER CUTTING MACHINE Filed March s, 1939 1:5 sheets-sheet 3 INVENTORWML/,1M /rf /fm r Y fe; 44u.

ATTORNEYS June 9, 1942.

June 9, 1942. w. A.. DE HART PAPER CUTTING MACHINE Filed March 3, 195913`Sheets-Sheet 4 WITNESS ,gm/CO June 9, 1942. w. A. DE HART 2,285,911.l PAPER CUTTING MACHINE l Filed ar-Oh 3, 1939 13 Sheets-Sheet 5ATTORNEYS June 9, 1942.` w. A. DE HART 2,285,911

PAPER CUTTING uAcHlNE `Filed March :5,`1939 1:5 sheetsTsheet s ATTORNEYSJune 9, 1942. w. A. DE HART PAPER CUTTING MACHINE Filed March 3,y 193913 Sheets-Sheet 7 n R E o5 m Tj N. m Enn WITNESS f7? June 9, 1942. w.'A.DE HART l PAPER CUTTING MACHINE Filed March s. 1959 1s Sheets-snee; a

INVENTOR ATTORNEYS WITNESS W10 June 9, 1942.

w. A. DE HART v 2,285,911

PAPER CUTTING MACHINE l Filed March I5,l 1959 13 Sheet's-Sheel;v 9

z/a z/,z M3 z/Z ne 2/0 Lamm' ATTORNEYS June 9, 1942. v w. A. DE HARTPAPER CUTTING MACHINE Filed Maucm,l I5. 1939 13 Sheets-Sheet 10 June 9,1942. w. A. DE HART 2285,911

PAPERV CUTTING MACHINE WlTNESS 4? Z474 1N NTOR` ATTORNEYS June 9, 1942.

15 sneets-shee 12 Filed March 5, 1959 ....I\ .mm

ff...wwwN Y .gir lll QS M b@ y WITNESS RH w 0H E E .m m ,IM A M M L LYMam June 9, 1942. w. A. DE HART PAPER CUTTING MACHINE Filed March 3.1959- 13 Sheets-Sheet 15 WITNESS 7m@ ATTORNEYS l Patented June 9, 1942rusa cu'r'rlNc MACHINE Wiuiam A. De um, Temeer, N. J., 'minor to KamketCorporation, New York,` N. Y., a corporation of New York ApplicationMarch 3, 1939, Serial No. 259,593

29 Claims. (Cl. 'I1-22) This invention relates to a machine for drillingand cutting through a stack of paper sheets to provide the sheets withapertures or holes so that they may be utilized as illlers in loose leafbooks or bound together .by a binder into book form.

Books consisting of a large number of paper sheets perforated along oneedge thereof and then bound together by a binder have now comeV intogeneral use for all kinds of purposes. 'Many of the binders used todayare made so that portions thereof pass through the sheets a large numberof times. This is especially true of the spiral type of binder whichconsists of a spirally swisted wire whose convolutions pass through theapertures in the sheets. As it is preferred to use a spiral binder whoseconvolutions are closely related and are of a minimum size in order tominimize the bulkiness o f the book and to avoid other objectionablefeatures, the perforations in the sheets of books utilizing this type ofbinder are usually of small diameter, some of such perforations beingfrom .0185 of an inch to .067 of an` inch in diameter, and are closelyrelated to each other and to the binding edge of the sheets so that thesolid portions of the paper between perforations and between the latterand the binding edge of the sheets are exceedingly narrow in width. Ithas been thepractice in manufacturing books of this type to cut theholes in the sheets in a plurality of operations. Formerly this wasaccomplished by ground solid pin or bar punches which were caused todescend upon a small pile of sheets, the thickness of the pile beingrestricted to 1% inch or less depending on the class of paper to bepunched. After the holes had been punched in the several piles, thelatter were united to form the complete book. This method had manydisadvantages and in an effort to find a more satisfactoryandefiicientmethod of perforating the sheets, the art turned to the drill press.Experiments with twist drills, however, proved unsatisfactory andthe artdecided that in order to drill -holes in paper, to drill vas cleanly aspossible, a hollow punch drill was necessary. While with this type ofdrillit is possible to drill holes completely through the book in oneoperation thus obviating the necessity of dividing. the book into smallpiles, it was found that all the holes in a row could not be drilled inone operation due to the inherent construction of such presses. It wasnecessary, therefore, to cut the holes in a number of operations byilrstcutting widely spaced initial perforations, then moving the bookalong to cut the next until all the holes were cut. The number oi cut- Yting operations requiredto complete the rowof holes is dependent on the`number of holes required to the inch, for example, yforming veperiorations to the inch requires iive separate voperations to completeiive sets of periorations.

Such operations required that the book be fed step-by-step toward thepunches in order to bring the punches into alignment with the holes thathad already been punched. This is the method used today and while it hasmany advantages over the paper punch, it is not satisfactory from aneconomic standpoint in an industry whose l products sell at extremelylow prices and where costs of production are oi the utmost importance.

The many operations required in making thisv class of product have notbeen a matter of choice but one of necessity for the reason that nosatisfactory means were available or known to form all of theperfortions at the same time through the full thickness oi' the book.

'Ihe hollow drill press possesses other disadvantages which do notrender its use entirely satisfactory. In order to be eiiiciently used,these drills must be sharpened properly and be ground with the correctbevel. This is essential for satisyfactory results and must be donefrequently. In

drilling there is a tendency of the sheets to pucker and the holes cutout are often upset or burred on the underside from drill entry. Thediscs of paper cut out from the sheets accumulate within the hollowbores of the drills unless some means are provided for removing them.Due to the fact that only a limited number of holes can be drilled inone operation with this machine, it is extremely difficult andimpractical to get suiilcient` accuracy to permit insertion of thesmaller spiral Iwires as in practical work the small holes suitset vofperforations and repeating this operation able for the size of wire usedwould vary both in' hole-to-hole spacing and marginal distance from theallowance necessary for spiral insertion. These4 inaccuraciesnecessitated that the holes be made oversize to compensate formisalignment and so that the assembled sheets would conform to thespiral arcs of the wire convolutions.

It is the purpose oi the present invention to provide a paper cuttingmachine based on an entirely new theory of operation which willaccurately drill a complete row of holes all at the same time throughthe full thickness of the book, which will be free of the disadvantagesof the paper cutting machines heretofore used for this class oi' workand which will produce a perforated book of -sheets through which aspiral binder can be readily and accurately inserted.

Another object of the invention is to provide a paper drilling machinewith twist drills of a novel construction which will etliciently andsatisfactorily drill holesthrough books of paper sheets.

Another object of the invention is to provide a paper drilling machinewith guide means for the drills which will exert an annular pressureabout the areas to be cut by .the drills so as to.

compress the paper sheets ofthe bookin the areas affected into asubstantially solid body.

Another object of the invention is to provide a paper drilling machin'ewhich will automatically so constructed and organized that the bookswill be fed through'the machine at a relatively high.'

rate.

With the foregoing and other objects in view, the invention comprisesthe novel construction, combination and `arrangement of parts herein-`after more specically described and illustrated vin the accompanyingdrawings wherein is shown the preferred embodiment of the invention andin which Fig. 1` is a top plan view of the entire machine; Fig. 2 is avertical section taken along the line 2--2 oi' Fig. 1;' Fig. 3 is a sideelevation of the machine a's viewed from the right of Fig. 1; Figui is asectional view taken along the line 4-4 o f Fig. 1, showing the positionof the movajale carriage at the completion of the drilling 2,285,911 y yi is aA rear elevation of the central portion of the machineillustrating the movable carriage and associatedmechanism for operatingthe clamping arrange the sheetsso thatafter they 'have been'A operation;Fig. 5 isa similar view, in section,

taken along the line 5--5 of Fig. 1; Fig. 6 is a sectional plan viewtaken approximately along the lines 6-6 of Figs. 2 and 3 and lshowingthe Y lower driving-mechanism of the machine; Fig. 7

is a top plan view of the central portion of the table of the machine onan enlarged scale, showing a book in position to be drilled on themovable carriage portion; Figs. 8 and,9 are cross sectional` views takenalong the lines 8 8 and 9 9, respectively, of Fig. 7 showing therelation of the parts constituting they table portion of themovablecariage in their normal position; Fig. 10 is an enlargedsectional view taken along the line I II-I II of Fig. 7 showing indetail the pusher and stop mechanism; Fig. 11 is a plan view of 1a bookillustrating the arrangement of the sheets thereof just .after thedrilling operation; Fig. l2 is a l top plan view of the book after thesheets thereof have been straightened land a spiral binding wirethreaded through the series of drilled holes to bind them together; Fig.13 is an yenlarged elevational view of one of the conveyor holdersshowing a stack of sheets or book in position therein; Fig.`l4 is a sideview of the parts shown in Fig. 13; Fig. 15 is a top plan view of theparts shown in Figs. 13 and 14; Fig. 16 is an enlarged View 'in sideelevation of the mechanism for transferring the books from the holdersto the table of the machine; Fig. 1.7 is a, sectional view bar; Fig. 22is a sectional view taken along the line 2lb-22 of Fig. 21 and shows abook of sheets in position to be clamped; Fig. 23 is a top plan view,partially in section on an enlargedscale,

of the driving mechanism for the drills; Fig. 24

vmechanism at the completion of the drilling operation; Fig. 26 is aplan view taken along the line 26-26 of Fig. 25 showing the arrangementof the guide bushings and vguide baron the table of the movablecarriage; Fig. 27 is a front eleva.-

'tional view, greatly enlarged, of one of the drills and a portion ofthe drillholder, partly in section; Fig. 28 is a side elevation of thebottom portion of the drill shown in Fig. 27; Fig. 29 is an enlargeddetail view in section showing thel manner of holding -th sheets oi' thebook in proper arrangement during the drillingoperation; Fig. 30 is asectional vievl1 taken along the line 30--30 of Fig. 29,' Fig. 31 is aside elevation of the topportion of'a book drilled in accordance withthe invention and with the spiral binding in place; Fig. 32 is a partialtop plan view of the filler illustrated in Fig. 31; Fig. 33 shows thebottomportion of a. modified form of drill; Fig. 34 shows the bottomportion of another form of drill made in accordance with the invention;and Figs. 35'and 36 are bottom end views o f the drills illustrated inFigs. 33 and 34,v respectively.

Before taking up the detailed description of the machine illustrated inthe drawings, it is believed advisable in order to facilitate anunderstanding of the invention, to first considerthe construction of theloose leaf binder for the manufacture of which such machine wasdevised.

'Ihe type of loose leaf binder concerned is illustrated in Figs. 12, 31and 32 of the drawings, and comprises a stack of sheets I and outersheets 2 of heavier paper than the sheets I whichvconsti- 1 tute thebook. The sheets 2 may beof the sameA size as the sheets I, as'shown inthe drawings, s'o.` that they form covers for the latter or they may bemade from narrow strips of paper so'thatthey cover only a portion of thesurfaces of rthe book closely related holes 3 which may be as small asif of an inch or even smaller in diameter, are each, ,considering thebook asa unit, arcuately shaped when viewed in section in the directionofl Y the central axis of the spiral Wire V4, as is shown taken alongthe line II-Il of Fig. 16; Fig. 18 is..

a sectional view taken along the line I8-I8 of Fig.r16; Fig. 19 is a topplan view of the carriage frame and clamping bar; Fig. 20 is a frontelevation of the structure shown in Fig. 19; Fig. 2l 75 in Fig. 31 andobliquely disposed when viewed in section transversely of such axis asis shown in Fig. 32. By constructing the holes 3 in this manner the sideedges of all the sheets constituting the book will be maintainedinvertical planes by the spiral wire II. The manner of drilling theholes to produce this result will be readily' lap-Y parent from thefollowing description.

Considering now in a general manner the em#- Y bodiment of the inventionillustrated in Vthe drawings, the books which may consist simply of aplurality of thin paper sheets or vinclude binder strips or coversheets, as has been above indicated, and which are each to be providedwith a rowof holes such as above described, are fed by the operator atthe station designated A in Fig. 1 of the drawings, to the Vverticallydisposed holders B which are hingedly mounted on aconveyer chain C. Thebinding or top edges vof the books are inserted foremost in the holdersand positioned against a concavely grooved plate provided in the lowerend of the holders to arrange the sheetsv at the binding or top end ofthe books in a convex fashion. The conveyer chain C moves in astep-by-step fashion in the direction of the arrow and during suchtravel of the conveyerv each loaded` holder comes into engagement witha' cam which tilts it toward the front of the machine. When a loadedholder reaches the station designated D it has been tilted so that'thebook is substantiallyl parallel to a guide plate E and at this stationduring the peri- ,od of rest of the conveyer C, transfer mechanism comeinto operation to strip the book from the holder and slide it o ver theguide plate E onto the table F of the machine and over a chain conveyerG positioned between the spaced plates forming such table. A pusher Hcarried by the chain conveyer G thereupon engages with one side edge ofthe book and under the influence of the conveyer pushes the book alongthe table and onto a movable portion I of the table disposed in thecentral portion of the machine.

,During this pushing movement the book engaging plate of the pusher Hwhich is inclined outwardly from the vertical, shifts the sheetsin thebook so that'lthey become stacked in an inclined fashion. a result ofthese operations the'sheets of the book ,are arranged so that the topand bottom ends of the book are arcuat'ely shaped while the side edgesare inclined. After the book has been deposited on the movable por- .5tion I of the table, against a stop plate J, mechanism are operated toclamp the top portion of the book vand to lift such portion I to bringthe clamped upper portion of the book into engagement with 4a lrow ofdrills driven through flexible shafts from the drill head K. Uponcompletion of the drilling operation, the movable table portion orcarriage I is brought down to the level of the stationary table portionsof the machine .and then after the stop plate J has been lifted upwardlyout of engagement with the side of the book the conveyer G comes intoloperation to remove the drilled book off the movable table portion I andonto the stationary table portion to the left of the machine, as viewedin Fig. 1, whereupon the drilled book can be removed by the operator orfed to suitable mechanism for inserting `the spiral binding in thedrilled holes of the book. i

Referring now more particularly to the drawings in which the samereference characters indicate the same parts in the several views, the

frame or body of the machine is indicated gerrv erally by the referencecharacter l5. Mounted on the rear right-hand side of the machine body 5,as viewed in Fig. 1, is the loading chain conveyer C which comprises anendless chain 6 carried by spaced horizontally disposed sprocket wheelsI and 8. 'Ihe sprocket wheel I is secured toa vertically disposed shaft9 (see Fig. 2)

which is rotatably supported by the spaced bearing brackets 9a and 9bsecured to longitudinal beams at the rear of the machine body. A thrustbearing 9c positioned intermediate the sprocket wheel I and bearingbracket 9afacilitates the ro tational movement of the shaft 9.' Thesprocket wheel 8 is connected to a vertically disposed shaft thevertically disposed shaft I0.

I0 which is rotatably supported through a thrust bearing I 0a by-abearing bracket I 0b, the latter of which is secured to the uprightchannel beam II of the machine body. The endless chain 6 travels in ahorizontal plane and comprises a plurality of upper connecting links onevery other one of which is secured a,hinge bracket I2 having spacedbearing supports through which extends a pin I3 (see Figs. 13 to 15).Mounted on the outer ends of the pin I3 are the hinge members Il, I l,depending from the base plate I5 of a holder B. Secured to each side ofthe base plate I5 at their lower ends, as by means of rivets, are thespaced plates I6 and I'I between which the book is inserted at theloading station A, the upper a sheets which constitute the book arearranged in i a convex fashion. As will be observed more clearly in Fig.13, the plates I6 and Il have a4 width less than the width of the bookand in order to maintain the side edges of the sheets of the bock inproper arrangement and to facilitate the transfer of the book from theholder, a transverse bar I6 is secured to the upper end ofthe plate I6,such bar being materially longer than the width of the plate I6 so thatits ends project outwardly therefrom and the outer ends of which arebent towards the plate I1 to' span the space between the plates I6 andI1. Mounted on the plate I6 by means of spaced lugs 20,720, is avertically disposed roller I9 arranged to engage with a guide rail 2|under the tension of a coil spring 22 mounted on the pin I3 intermediatethe bearing supports of the hinged bracket I2 and having one end bearingagainst the hinged bracket I2 and its other end engaging with the plate'I'I of the holder` B. The guide' rail 2| which is formed in anendless-fashion is positioned adjacent to and within the confines of theendless chain 6, being supported at one end by a U-shaped bracket 23mounted on the upper end of the vertically disposed shaft 9 and at itsother end by a U-shaped bracket 24. mounted Von Intermediate theU-shaped brackets 23 Aand 24 is provided a U-shaped spacer. bar 25 formaintaining the sides of the guide rail in parallel arrangement. Mountedupon the guide rail 2| is an elongated horizontally disposed cam-member26 (see Figs. 1 and 14) arranged so tha-t the rollers I9 of the holdersB ride on the outer cam surface thereof, as such holders approach thetransfer station D, to tilt the holders forwardly against the tension oftheir springs 22. The cam 26 is so formed direction, as viewed in Fig. 1of the`drawings,

by a motor 21 which is connected to such conveyer through ashaft 29extending across the drill head K and rotatably mounted on a pair ofspaced bearing brackets29a and 291)` secured to plate 252 of the drillhead and conected at one end to the motor shaft 28 by the detachablecoupling members 30, 38. The shaft 29 is connected at its other end, bymeans of the detachable coupling members 3|, 3|, to a shaft 32projecting from one side of a housing 33 containing reduction gearmechanism. The gearings in the reduction gear housing 33 are arranged sothat the rotational movement imparted to the shaft 32 by the motor 21 isreduced in the ratio of a hundred to one, such reduced rotationalmovement being imparted to a shaft 34 projecting from the other side ofthe reduction gear housing 33 (see Fig. 1). Mounted on the outer end ofthe shaft u is a sprocket wheel 35 with which is engaged one end of an Aendless chain 36 which extends downwardly in a substantially verticaldirection at the rear of the machine (see Fig. 3) and is connected atits other'end to a sprocket wheel 31 secured to a horizontally disposedshaft 38 (see Fig. 6). 'Ihe shaft 38 is rotatably supported at its endsby a pair of spaced bearing brackets 39,' 39, which are secured toupright channel members provided at the rear of the body of the machine.Also provided on the shaft 38 is a sprocket wheel 40 carrying one end ofan endless chain 4| whose other end is carried by a sprocket wheel 42mounted'on a shaft 43 extending longitudinally of the body of themachine intermediate the front and rear' ends thereof, as is shown inFig. 6. The shaft 43 is rotatably supported at one end by a bearing 44which is mounted on the top of a cross frame 45 and at its other end bya pair of bearings 46, 46, which 4are'secured to ment and functioning toimpart to the shaft 50' a step-by-step rotational movement. The shaft'60 is rotatably supported at its ends by the bearings and 62 mounted onthe cross4 frames 53 and '54, respectively, and intermediate its ends bythe 55 and 56 mounted on the bracketv 61 and the cross frame 41,respectively (see Fig. 6). Secured to the shaft 50 adiato the bearingsllvis a bevelled pinion 58 w h engages with a bevel gear 59 attached tothe forward end of a transversely extending vshaft 68.' The shaft 691srotatably supported on a pair of spaced bearings 6|, 6| which aremounted on the upper surface of an offset portion of the'cross frame 53and is provided at its rear end with a bevel gear 62 which .engages witha bevelled pinion 63 mounted on the shaft 9 below the bearing bracket9a, as is shown :more clearly ln Fig. 2. Thus the step-by-steprotational movement of the shaft 50i-is imparted through the gears 58,59, 62 and 63 to the shaft 9 which carries the .sprocket wheel 1 of theendless chain conveyer C and through the sprocket wheel 1 to 'suchconveyer. The step-bystep movement of the chain conveyer C and of the.holders B thereof is' correlated to the step-bystep movement of thechain conveyer G and the the latter take place during the periods ofrest of such step-by-step movements, as will hereinafter become moreapparent.

It will be evident from the foregoing that 5 when aA holder B is broughtto rest at the station D, in the step-by-step movement of the conveyerC. such holder is tilted forwardly by the cam 26 at an angle ofapproximately fortyiive degrees from the vertical and is disposedso 10that the plate I1 thereof is substantially in alignment with theobliquely disposed guide plate E whose rear end is closely adjacent tothe outer end of the plate |1 in this position of the holder, as can beclearly seen in Figs. 2 and 3.

During the period of rest of the conveyer, transfer mechanism comes intooperation to discharge the book from the holder ontov the aligned guideplate E and across the latter to the work table F which-is also inclinedrearwardly at an angle of approximately forty-ve degrees. The mechanismfor accomplishing this purpose comprises a pair of transfer members 10which are spaced apart for a distance at least as great as the width ofthe plate |1 of the holder (see Figs. 16 to 18) and have a slot 1|formed in their forward ends adapted to receive the upper end ofthe'book which is positioned lowermost in th'e holder B. The slots 1|are concavely shaped at their interior surfaces in a manner similar tothe top surface of the base plate I5 of the holder so that in theengagement of the transfer members 16 with the top end of the book inthe holder, the arrangement of the sheets constituting such book is notdisturbed. The transfer members 16 are mounted on the upper ends of rods12 which extend through cylindrically shaped lug members 13 provided onthe upper surfaces of a pairofspaced plates 14, 14, the latter of vwhichare provided with recesses along their opposed faces adapted to slidablyreceive the side edges.

of an obliquely disposed rail 15 and are'connected together'by the crossplates 14a` so that they constitute Y a sliding block. Extendingtransversely through each of the plates 14, is a spring-`pressed plunger14b adapted to engage with an indentation provided inthe outer edge ofthe rail 15 when the sliding block formed by such plates is in itsretracted or normal position. The purpose of the spring pressedplungersv14b is to retard the forward movement of the block until thetransfer members 10 are raised into` position in back of the book, aswill be hereinafter more fully explained. The lowerf projecting ends ofthe vrods 12 are connected byacross bar 16 which normally is positionedas shown in full vlines in Figs. 16 and 18 of the drawings, so 4that thetransfer members 10 are in engagement with the upper ends of thecylindrical lug members 13 and below the path of movement of 4(ftheholders B as will be apparent .in Figs. 2, 3

and 16 of the` drawings. The cross bar 16 includes three dependingbearing o`r hinge supports through which extend a pin 11 andintermediate which are positioned the rear ends of a 65 pair of bellcrank levers 18, 18, through which v surfaces Iof the sliding blockplates 14, 14, and

at their forward-ends are connected to the outer ends of and carry a pin8|. Rotatably connected tothe pin 8| intermediate the forward arms ofthe bell crank levers 18, is one endof a 'link 82 operations of thetransfer mechanism so that whose other end is attached to the upper endof a transfer arm 88. The transfer arm is pivotally supported at itslower end by a bracket 84 which its ends by means of a link 85, to theforward end of a cam lever 38, the other or rear end of such lever beingrotatably mounted upon the intermittently movable shaft 50; Intermediatethe ends of the cam lever 88, is provided a cam roller 81 which engageswith the cam groove of an internal cam 88, secured to the continuouslyrevolving shaft 43. 'Ihe groove of the cam 88 has the form indicated indotted lines in Fig. 2V

of the drawings, the roller 81 being shown in its lowermost position tomaintain the several parts comprising the transfer mechanism in theirretracted positions while a holder is being moved into position atthestation D for transfer of the book contained therein. Soon after theholder comes to rest at station D, the cam roller will start to ride upon the cam surface 88a, thereby causing the cam lever 88 .to be pivotedupwardly about the shaft 58 in a clockwise manner, as viewed in Fig. 2,and inturn causing the transfer arm 83, through the link Il, to rotateon its supporting bracket 86 in acounter clockwise or forward direction.Due to the factl that the spaced plates 14, 14 forming the sliding blockare detachably connected to the guide rail by the pair of spring pressedplungers 14h, as has been previously described, the initial rotativemovement of the transfer arm 83 will, through the link 82 operate tocause the bell crank levers 18, 18 to be rotated to the position shownin dotted lines in Fig. 16 of the drawings, to raise the cross bar 16thereby positioning the transfer members 18 directly in back of theprojecting end portions of the `book in the holder B. Oni continuedpivotal movement of the transfer arm 83 as the cam roller 81. rides upon the cam surface 88a of the cam 88, the vtension of the springs of theplungers 14h will be overcome and the sliding block comprising thespaced plates 14, 14 will be moved upwardly on the inclined'rail 154towards the front of the machine, the` transfer members 10 during suchmovement l.being brought in to engagement with the upper end of the bookin the holder B and functioning` to transfer such book from theholderacross the guide plate E -and onto the obliquely inclined worktable E, as is shown in Fig. l of the drawings, the transfer members 10being shown in such figure at the end of their forward movement. The cam88 thereupon operates through the mechanism above described, to bringthe in the manner in which they were arranged in the holdersB, at leastuntil the holes for'the spiral bindings therefor have been drilled. Thetop of the work table is comprised of a pair of spaced vtable membersarranged in sections and extending in parallel relation longitudinallyof the machine, one of said table members. com- Aprising the alignedplate sections 80, 80a, and

88h, as is shown more clearly in Fig. 1 of the drawings, and the otherof said members comprising the aligned plate sections 8|, 8|a and 8Ib,the parallelly disposed intermediate plate sections 80a and 8|aconstituting part of the'movable carriage I which will hereinafter bemore fully described. The several plate sections 80, 80a, 80h, 8|, 8|aand 8Ib are mounted on longitudinally disposed angle-plates 82, 82a,82h, 83, 93a and 83h, respectively (see Figs. 2, 4 and 5). 'I'he rearangle plates 82 and 82h are secured at theirinner ends to the spacedobliquely inclined supporting strips 84 and 85, respectively, the latterof which are attached at their lower ends to a pair of foot blocks 86,86 mounted on the front portion of the body of the machine andintermediate their ends to the spaced plates 81 and 88 which'aredisposedin oblique fashion, one about `the `other and in parallelrelation, as is shown more clearly in Figs. 2 and 2l. The plates 81 and88 are further secured to a. pair of obliquely disposed strips 88 and|00 which incline upwardlyI and rearwardly from the forward end of themachine and which have at their upper ends offset portions 88a and |00a,respectively, to which are secured, respectively, the obliquely disposedcross frames |0| and |02 (see Figs. l, 2 and 4). The cross frames |0|and |02 are supported at their rear ends on offset portions of the rearcolumns |03 and |04 of the machine and, on a longitudinally extendingchannel beam |05 which braces the rear columns |03 and |04. The forwardends of the obliquely inclined cross frames |0| and |02 are providedwith depending legs sliding block and the holders 10 carried therebyback to their starting position whereuponv the spring pressed'plungers|4b will again engagey with the recesses in the side edges of the rail15 so that in the last portion of the pivotal movement of the transferarm 83, the bell `crank levers 18 will be pivoted to withdraw thetransfer members 10 into engagement with the cylindrical lug or stopmembers 18 and out of the |0|a and |02a, respectively, which areattached to the offset upper ends of the front columns |06 and |01,respectively. The front angle plates 83 and 88h are secured at theirinnerends with the depending legs |0Ia and |02a, respectively, to thefront columns |06 and |01, respectively. The outer ends of theparallelly arranged angle plates 82 and 93 are connected together by across tie rod |08, while the outer ends of the parallelly arranged angleplates 82h and-9317A are rigidly connected together by means of thecross tie rod |08 (see Fig. 1 of the drawings). The manner of supportingthe angle plates 82a and 83a will be described more fully in thefollowing discussion of the movable carriage'I.

Extending longitudinally of the machine 'in the space between the abovedescribed parallelly disposed table members, one of which comprises theplate sections 80, a. and 80h and the other of which comprises the platesections 8|', 8|a and 8|b, is disposed the conveyor G comprising thechain ||5 which is supported at one end of the machine by a sprocketwheel ||6 and at the other end of the machine by a. sprocket wheel ||1(see Fig. l). The sprocket wheel ||6 is mounted on a transverse shaft||8 which is rotatably supported at its ends by the bearing members ||8and |20 mounted on the lower legs of the bracket members |2| and |22,repectively, a's is shown more clearly in Fig. 5. The `upper legs of thebracket members |2| and |22 are secured asby bolts to the under sides ofthe angle plates 83h and 82h,

respectively. The sprocket wheel ||1 in a like manner is mounted on ashaft |23 which is rotatably supported by the bearing members |24 and|25 mounted on the lower legs of the bracket members |26 and |21,respectively, the upper legs of which are iixedly attached vto the undersurfaces of the angle plates 93 and 92, respectively (see Fig. 3 of thedrawings). The shaft |23 is connected by means of a universal coupling|28 to one end of a shaft |29 which is rotatablysupported adjacent itsother end on a bearing |30 mounted on the cross frames 41 and 54 of themachine and has attached to such end a pinion |3| which engages with abevel gear |32 mounted The bottom ends 4of the brackets in each pairare'provided with rollers |36, |36 which extend inwardly in opposedrelation and which engage with side grooves provided in a longitudinallyextending railY |31 mounted upon and bolted to the cross tie rods |08and |09, The upper ends of' the brackets |35 of each pair are offset inoutwardly opposed relation and each of such offset portions is Providedwith an opening through which extends a bolt |38. The heads |391of` thebolts of each pair of brackets are provided with aligned. transverselyextending openings through which extends a shaft |40. shank. of eachofthe bolts |38 intermediate theupper offset portion of its associatedbracket |i35 and a flat sided washer |42 secured on the lowerend of thebolt shank by means of a nut, is a vcompression spring |4| which tendsto maintain 9| ride over the central longitudinally extending grooves|62 Aand |63 provided in the plates 90 and 9|, respectively, but out ofcontact with the bottom surfaces of such grooves so that they perform nofunction at this portion of theA machine. The front or left end of theplate |49, as viewed in Fig. 9, is provided with a transverselyextending offset end portion or shoe |64 which engages with a latchmember to maintain the rollers |44 in engagement with their associatedtracks during the drilling operation, as will hereinafter be explained,but which during v its passage over the plate section 9| performs no Iing its passagey over the plate section 90, merely riding just above butnot in contact with the longitudinally extending rail |66 providedintermediate the front and rear edges of the plate section 90 and ushwith the rear edge of the groove |63 thereof.

From the foregoing description -it will become apparent tha-t as thechain ||5 moves longitudinally of theA machine in a step-by-stepfashion,

Mounted on the adjacently to the outer ends of the heads |39 of 1'theboltsare va pair of spaced rollers |44, |44

which ride on tracks |45 and |46 provided cn the top of the table andextending longitudinally `of the machine adjacent to the inner opposededges of the plate sections. 'I'he tracks |45 and y |46 are dimensionedso that the under surfaces of the heads |39 of the boltsare maintainedjust freek of engagement with the upper surfaces of the offsetportions'of the brackets |35. Intermediate the spaced heads of the bolts|38- is positioned a cylindrical spacer member |41 through which theshaft |40 extends and which is attached to-the central lower portion ofan angularly disposed pusher plate |48 (see Figs. 9

and 10). The upper edge portion of the pusher plate |48 normally restsagainst the outer end of a set`screw |49 threadedly connected with anupwardly extending portion of -a cross plate |50 which is securedat itsouter ends'to the heads |39 of the bolts |38. Mounted on the front andrear ends of each plate |48 are a pair of brackets |60, |60 which extendfrom the upper portion of such plate rearwardly around the shaft |40 andat their lower ends are provided with rollers |6|, |6|, such bracketsbeing arranged on the plate |48 so that the rollers |6|, |6| duringtheir passage over the plate sections 90 and the pusher plates |48mounted thereon will be brought over the right-hand end of the machinein succession and will pass with a step-by-step movement over the tableplate'sections 90 and 9|, 90a and 9|.a and 90b and 9|b, such plates |48spanning `the central opening between such parallelly disposed plates asis clearly shown in Fig. 1 of the drawings. The plates |48 are soarranged on the chain |'|5 that in their passage over the plate sectionsand 9| they come to rest at a point just prior to that portion of theplate sections upon which the book is deposited by the transfermechanism (see Fig. 1). When the transfer mechanism has deposited a-book on the rails |45, |46 and |66 of the plate sections 90 and 9|, andhas been withdrawn, a plate |48, on the next step-by-step movement onthe chain H5, will come into engagement with `one side of the book andpush it along the said rails |45, |46 and |66 towards the movablecarriage I of the machine. Due to the fact that the plate |48 isinclined, the sheets of the book will be rearranged during this pushingmovement so that their edges are inclined in the same direction as theplate |48. yIn the embodiment A' of the machine illustrated, the plates|48 are inclined at an angle of approximately ten degrees from thevertical, so that the side edges of the books will be inclined at suchangle. Along the rear edge of the plate section 90 and to the left ofthe plate where the book is deposited on such plate section, as viewedin Fig. 1 .of the drawings, is provided a guide |61 withvwhich the topend of the book engages during .its movement toward the movable carriageI of the machine,

, sheets thus arranged passes of which such plate sections form a part,is inclined at an angle of forty-five degrees from the vertic The booktherefore will have the` sheets arranged in their passage ,over suchplate secarranged and their side edges are inclined with respect to thevertical. In the step-by-step movement of the chain ||the book with itsfrom the stationary plate sections 90 and 9| of the work table and ontothe plate sections 90a and 9|a of the centrally disposed movablecarriage I, .the pusher plate |48 coming to rest when the other orleftviewed in Fig. 1, is brought against the face of the plate |68 ofthe stop J which extends transversely across the plates 90a and 9|a andis inclined in parallel relation to the plate |48, as is shown in Figs.7 and 10 of the drawings.

The stop plate |68 is secured to a pair of end brackets |69, |69 havingaligned open holes through which extends a rod |10. The brackets |69,|69 are secured to the rod |10 by means of the vertical bolts |1|, |1|which extend across the slot of the open hole and bind the splitportions ofsuch bracketstogether against the rod |10. Attached to theforward end Aof the rod |10 Y is a narrow supporting plate member |12which projects forwardly from the forward end of such rod and hasattached thereto one end of a pair of link members |13 and |14. Theother ends of the link members |13 and |14 are pivotally connected to anoutwardly extending arm or bracket |15 secured to the angle plate 93a ofthe movable carriage I. The link |14 which is in the nature of a bellcrank lever, is provided with a depending fork-shaped portion |11 whichstraddles a longitudinally extending bar |18 (see Figs. 1 and 8)disposed in front of the machine and sup# ported by a pair of verticallydisposed arms |19, |19, pivotally supported at their lower ends bybrackets |80 attached to the foot of the machine (see Fig 4). The arms|19, |19 are connected intermediate their ends by a cross bar |8| towhich is connected one end of a lever arm |82. The other end of thelever arm |02 carries a cam roller |83 which engages with the outer camsurface of a cam |84 mounted onthe continuously rotating shaft 43. rIheroller |83 is maintained in engagement with the cam surface of the cam|84 through a supporting link |85 which is connected at its upper end tothe lever arm |82 and at its lower end to the foot of the cross frame45, and a tension-spring |86 which is connected at one end` to thesupporting link |85 and at its other end to a rear portion of the frame45. By reason of this arrangement of the stop plate |68 with respect tothe movable carriage and the driving mechanism, the plate will remain inengagement with the top surfaces of .the plate sections 90a and 9|athroughout the sliding movement of the movable carriage I, the slidingconnection between the fork-shaped portion |11 of the link |14 and thelongitudinally extending bar |18 permitting such movement withoutdisturbing the stop plate |60. The stop plate |68, however, can beremoved out ofthe path of the book and the pusher plates |48 by pivotingthe arms |19, |19 inwardly toward the body of the machine to cause thelink |14 to function as a lever to lift the plate member |12 and bar|10, the link |13 functioning during this operation to maintain theparallel relation of the stop plate with the top surfaces df the platesections 90a and 9|a: The cam |84 which conextending cam lever 200 whichis pivotally trols the pivotal movement of the arms |19., |19, isarranged to cause such pivotal movement after the carriage I hasreturned to positionu at the end of the drilling operation and justprior to the next step-by-step movement of the chain ||5 whereby thepusher plate |48 in engagement with the drilled book will push the bookoff the plates a and 9|a of the movable carriage and onto the stationarytable plate sections 90b and 9|b (Figs. 1, 7 and10).

The movable carriage I includes, as has been previously mentioned, "thespaced rear and front table plates sections 90a and 9|a and the rear andfront angle plates 92a and 93av upon which 91 and The arcuately shapedalso secured at their Abottom ends to the lower end portion of thesliding back plate |92. Intermediate the depending flanges-of the twoangle plates 92a and 93a are a. pair of transversely disposed U-shapedtie bars |94 and |95,` the former of which is secured between the plate|92 and the front upright |90 while the latter is secured between suchplate |92 and the forward upright |9| (see Figs.- 19 and 22). Themovable carriage I which is thus and the sliding back plate |92, isslidably moved on the longituguide d inal plates 91 and 98 andbetween'the strips |96 and |91 through a link |98 (See 4 and 22) whichis secured at its upper end to a bracket |99 attached to the rearsurface of the plate |92 intermediate the spaced longitudinally disposedplates 91 and 98 and at its lower end is connected to the forward end ofa transversely SUP.- ported at its rear end by a bracket 20| mounted ona horizontally disposed channel beam rear of the machineas is shown moreclearly in Figs. 4 and 5 ofthe drawings. The ca'm lever 200 is providedintermediate its ends with a cam roller 202 which rests upon'avertically disposed Figs.

cam 203 connected to the continuously rotating shaft 43. The connectionbetween the link |98 and cam lever 200 is through an elongatedslotprovided on the lower end of the link |98 and a pin carried on theforked end of the cam lever 200 so that in the initial upward movementof the cam lever 200 by the cam 203, the cam lever does not function tolift the movable carriage, such movement instead being used to bringinto operation mechanism for clamping the top end of the book during thesliding movements of the movable carriage.

When a book has been delivered to the movable carriage I, the sheetsthereof are maintained in the positions given them on the stationaryplate sections 90 and 9| by means of the pusher plate |48, the stopplate |68 and the section |61a of the rear guide rail against whoseconcavely shaped surface the topl end of the book bears. as isshown moreclearly in, Fig. 25',

Strips las and |91 se-l at the

